Adobe Lead Software Engineer Interview Questions, Process, and Tips

Q1. Basics of oops, .net framework and .net core
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Q2. Sql query for student department id
Ans. 
SQL query to retrieve student department id.
• Use SELECT statement to retrieve data

• Specify the columns to be selected, including the department id column

• Specify the table where the student data is stored

• Use WHERE clause to filter the results based on student information
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Q3. Solid principles and design patterns
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Q1. Asked to code palindrome
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Q2. Code duplicate string from main string and get index of sub string
Ans. 
Code to find index of sub string in main string and duplicate the sub string
• Use a loop to iterate through the main string and check for the sub string

• If sub string is found, duplicate it and store the index

• Return the index of the duplicated sub string
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Q1. Manager asked me to code the count index of substring and sum of substring
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Q2. Questions as HR informed, it was worst and all interviews were scheduled at night time.he was more technical than the second round team lead instead of asking manager round
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Q1. Find longest palindromic substring in a given string.
Ans. 
Use dynamic programming to find the longest palindromic substring in a given string.
• Iterate through the string and expand around each character to find palindromes.

• Store the length of the longest palindrome found so far.

• Return the substring based on the start and end indices of the longest palindrome.
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Q2. How to serialize and deserialise a tree
Ans. 
To serialize and deserialize a tree, use a recursive approach to traverse the tree and store the data in a suitable format.
• Use pre-order traversal to serialize the tree by storing the node values in a list or string.

• For deserialization, reconstruct the tree by recursively building nodes from the serialized data.

• Consider using JSON or XML format for serialization to easily store and retrieve tree structure.
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Q3. Find if a given regex (containing ., * and lower case english chars) matches a given string.
Ans. 
Use regex library to match given regex with string.
• Use a regex library like re in Python to match the given regex with the string.

• Check if the regex matches the string using the library functions.

• Handle cases where the regex contains special characters like . and * appropriately.
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Q4. Explain about throttling and implement throttle function.
Ans. 
Throttling is a technique used to control the rate of requests sent to a server.
• Throttling helps prevent server overload by limiting the number of requests processed at a time.

• Implementing a throttle function involves setting a maximum request rate and delaying excess requests.

• Example: Implementing a throttle function in a web application to limit the number of API calls made to a third-party service.

• Example: Throttlin...read more
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Q1. Find squares of elements in a sorted array and return the sorted response.
Ans. 
Sort the squares of elements in a sorted array and return the sorted response.
• Iterate through the array and square each element.

• Store the squared values in a new array.

• Sort the new array and return it.
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Q2. Write a short promise example and implement your own promise
Ans. 
A promise is a commitment to do something in the future, typically used for asynchronous operations in JavaScript.
• Promises are used to handle asynchronous operations in JavaScript.

• They represent a value that may be available now, in the future, or never.

• Promises have three states: pending, fulfilled, or rejected.

• Example: new Promise((resolve, reject) => { setTimeout(() => resolve('Done!'), 1000); });
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Q3. Explain event loop, what are different types of queues in event loop
Ans. 
Event loop is a mechanism that allows for asynchronous execution of code by managing the order of events in a single thread.
• Event loop continuously checks the call stack for any functions that need to be executed, and processes them in a non-blocking manner.

• Different types of queues in event loop include microtask queue (Promise callbacks), macrotask queue (setTimeout, setInterval callbacks), and animation frame queue
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Q4. What is virtual DOM and why its faster
Ans. 
Virtual DOM is a lightweight copy of the actual DOM, used to improve performance by minimizing direct manipulation of the real DOM.
• Virtual DOM is a concept used in frameworks like React to optimize rendering performance.

• Changes are first made to the virtual DOM, which is then compared to the real DOM to identify the minimal updates needed.

• This approach reduces the number of actual DOM manipulations, resulting in faster...read more
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1 coding question and MCQ on CS fundamentals were asked.

Q1. Questions were on my project. It was a full stack project on MERN. I was asked about non blocking IO, promises, alternatives to react.
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Q2. I was asked a DSA question to find the set of element that occurs twice in the array. I was expected to run the code.
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Q3. I was asked basics about cloud and if I have any related experience as the role would be devops.
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Q1. I was asked basics questions about myself. It was a very short 15 minute interview.
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Q1. Explain microservices.
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Q2. OOPS
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It included aptitude, technical and coding questions

Q1. Questions on SQL(Joins)
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Q2. Questions on arrays, substrings
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Q1. Location preferred
Ans. 
Remote work preferred, open to occasional travel
• Remote work preferred

• Open to occasional travel

• Flexible with location
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Q2. Family background
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Q1. Asked linq question and answered correctly with little modification, still was not impressed
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Q2. Expections were little high.
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